Skip to content
Shop Your Local Store Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted Authentic Brands

Mitsuboshi Super KB Standard V-Belt 0.5 in. W X 85 in. L For Riding Mowers

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A properly sized 4LK belt keeps your riding mower's power transfer steady instead of slipping mid-job.
Mitsuboshi MPN 4LK850A
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Mitsuboshi item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

This Mitsuboshi Super KB V-belt is built to drive the deck or transmission on riding mowers, sized at 1/2" wide by 85" long for a direct, no-slip fit. It's a standard 4LK-type belt, packaged on a sleeve for easy handling and storage until you need it. When a mower belt starts slipping or cracking, swapping in a properly sized replacement like this one keeps power transfer steady and your equipment running the way it should.

  • Width: 1/2" (0.5")
  • Length: 85"
  • Type: 4LK, Standard style
  • Brand: Mitsuboshi, Super KB sub-brand

The Details Specifications

Brand Mitsuboshi
Model / MPN 4LK850A
UPC 034494548502
Weight 1 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare